.center{
    padding-left: 5rem;
    width:54rem;
    height:50rem;
  }
  .center_top{
    font-size: 3rem;
  }
  .center_bottom{
    width:60rem;
    height:50rem;
    display: flex;
    flex-wrap:wrap;
  }
  .tuijian11{
    width:15rem;
    height:13rem;
    margin-top: 1rem;
    margin-right: 2rem;
  }
  .meta_title{
    text-align: center;
    font-size: 1.5rem;
  }
  .icon_shicai{
    vertical-align: middle;
    width:1.5rem;
    height:1.5rem;
  }